<template>
    <div class="login_container">
        <div class="login_box">
            <!--            头像区域-->
            <div class="head_box">
                <img src="../assets/logo.jpeg" alt="">
            </div>
            <!--            登录表单区域-->
            <el-form ref="loginFormRef" :model="loginForm"  :rules="loginFormRules" label-width="0px" class="login_form">
                <!--                用户名-->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
                </el-form-item>
                <!--                密码-->
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
                </el-form-item>
                <!--                登录重置按钮-->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
    export default {
        data() {
            return {
                // 这是登录表单的数据绑定对象
                loginForm: {
                    username: 'admin',
                    password: '123456'
                },
                // 这是表单的验证规则对象
                loginFormRules: {
                    // 验证用户名是否合法
                    username: [
                        { required: true , message: "请输入登录名称" , trigger: "blur"},
                        { min: 3, max : 10, message: "长度在3到10个字符" , trigger: "blur"}
                    ],
                    // 验证密码是否合法
                    password: [
                        { required: true , message: "请输入密码" , trigger: "blur"},
                        { min: 6, max : 15, message: "长度在6到15个字符" , trigger: "blur"}
                    ]
                }
            }
        },
        methods: {
            // 点击重置按钮 重置表单信息
            resetLoginForm: function () {
               this.$refs.loginFormRef.resetFields();
            },
            // 登录功能
            login: function () {
                this.$refs.loginFormRef.validate(async valid => {
                    if(!valid) return ;
                    const {data : res} = await this.$http.post('login',this.loginForm);
                    if(res.meta.status !== 200) return  this.$message.error("登录失败");
                    this.$message.success("登录成功");
                    window.sessionStorage.setItem("token",res.data.token);
                    this.$router.push('/home');
                })
            }
        }
    };
</script>

<style lang="less" scoped>
    .login_container {
        background-color: skyblue;
        height: 100%;
    }

    .login_box {
        width: 450px;
        height: 300px;
        background-color: #ffffff;
        border-radius: 5px;
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);

    .head_box {
        width: 130px;
        height: 130px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        position: absolute;
        left: 50%;
        transform: translate(-50%, -50%);
        box-shadow: 0 0 10px #dddddd;
        background-color: #ffffff;

    img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eeeeee;
    }

    }
    }
    .btns {
        display: flex;
        justify-content: flex-end;
    }
    .login_form {
        position: absolute;
        bottom: 0;
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
    }


</style>
